Abstract: This is the first of a series of two talks on finite dimensional Feynman Calculus. The second talk will be in the next week and will be given by Travis Ens. For the background on these series please check the Pizza Seminar blog http://pizzaseminaruwo.blogspot.ca/

Wick's theorem allows us to compute any exponential integral by repeatedly differentiating a Gaussian function. It is a bridge that will take us from Gaussian integrals to Feynman integrals and their evaluations in terms of graph sums and of course to a delicious Pizza at the end! These talks are designed for our undergrads, but good grad students and genius faculty can also attend!